掌舵范围不超出全球范围 [英] Helm range without leaving global scope
问题描述
我需要遍历实例列表,并为每个实例创建1个有状态集.但是,在范围之内,我便将自己限制在该循环的范围内.我需要在状态集中访问一些全局值.
I need to loop through a list of instances and create 1 stateful set for every instance. However, inside range I then limit myself to the scope of that loop. I need to access some global values in my statefulset.
我已经通过将我需要的所有全局对象放在一个env变量中来解决了问题,但是...这似乎很棘手.
I've solved it by just putting all global objects I need in an env variable but... this very seems hacky.
在仍然可以引用全局对象的同时循环遍历范围的正确方法是什么?
What is the correct way to loop through ranges while still being able to reference global objects?
我的循环示例
{{- $values := .Values -}}
{{- $release := .Release -}}
{{- range .Values.nodes }}
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: {{ $release.Name }} <-- Global Scope
labels:
.
.
.
env:
- name: IP_ADDRESS
value: {{ .ip_address }} <-- From range scope
.
.
.
{{- end }}
值示例
# Global
image:
repository: ..ecr.....
# Instances
nodes:
- node1:
name: node-1
iP: 1.1.1.1
- node2:
name: node-2
iP: 1.1.1.1
推荐答案
在输入循环块时,使用.
会丢失全局上下文.您可以使用 $.
来访问全局上下文.
When entering a loop block you lose your global context when using .
. You can access the global context by using $.
instead.
如头盔文档-
有一个始终是全局变量-$-此变量将始终指向根上下文.当您在一个范围中循环并且需要知道图表的发行名称时,这可能非常有用.
there is one variable that is always global - $ - this variable will always point to the root context. This can be very useful when you are looping in a range and need to know the chart's release name.
在您的示例中,使用它的方式类似于:
In your example, using this would look something like:
{{- range .Values.nodes }}
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: {{ $.Release.Name }}
labels:
.
.
.
env:
- name: IP_ADDRESS
value: {{ .ip_address }}
.
.
.
{{- end }}
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